| 摘要 |
PURPOSE:To absorb a vibration in any irregular direction effectively by having, an elasticity conter in the direction of a load which works on a combined body consisting of an elastic body and a viscoelatic body, included on the elastic body side and arranging the elastic body and the viscoelastic body in parallel. CONSTITUTION:A coil spring, a plate spring and so forth are used for an elastic body 1, and solid bodies of such as epoxy resin, urethane resin and so forth are used for a visco elastic body 2, although material and shape which are suitable for the temperature condition and the setting condition are selected. The combination of the elastic body 1 with the visco elastic body 2 constitutes a combined body having a coil spring 1 acting as an elastic body concentrically fitted inside the cylinder shape visco elastic body 2, both ends of which are fixed to an end plate 3, and thereby the visco elastic body 2 is formed at the same height as the coil spring 1. Accordingly, damping property of the visco elastic body 2 works effectively with high damping effects, and the natural frequency becomes conspicuous only in a horizontal component in the rotary motion. |
